Giải phương trình nghiệm nguyên `1/x` + `1/y` + `1/(6xy)` = `1/6`

Mình đang cần gấp, nếu có thể thì vẽ giùm mình hình ạ. Mình xin cảm ơn. Cho hình chữ nhật ABCD có O là giao điểm 2 đường chéo. Trên OB lấy điểm I bất kì. Gọi E là điểm đối xứng của A qua I và J là trung điểm của CE. Đường thẳng IJ cắt BC tại F và cắt đường thẳng CD tại H. a) Chứng minh : OIEC là hình thang. b) Chứng minh : OIJC là hình bình hành. c) Chứng minh : ΔJCE cân. d) Chứng minh : EFCH là hình chữ nhật.

với there is/there are=has/have/don't have/doesn't have 1.does phong's school have forty classrooms? are 2.the menu doesn't have fish and rice there 3.the supermarket has soap .toothpaste.chocolates.tea.and apple there 4.there isn't rice in food store the food store 5.there are many dishes in the Sao Bien restaurant 6.the supermarket has cabbges.carrots and potatoes there

Cho hình thang vuông ABCD (góc A = góc D = 90 độ và AB < CD). Hai đường chéo AC và BD vuông góc với nhau và cắt nhau tại O. a) Chứng minh: AD ²=AB.CD b) Cho AB = 4.5cm, CD = 8cm. Tính OA,OC và diện tích hình thang ABCD

giúp em chuyển thành câu gián tiếp với ạ

Cali: Sonata P/s: Đố bạn tui đang nhắc tới bài Sonata nào?

TEST 19 I. Choose the correct answer: 1. Choose the word that has the underlined part pronounced differently. A. teach B seat C. meat D. great 2. Let’s learn some _______. A. much B. many C. more D. most 3. I _______ have a motorbike. A. don’t B. doesn’t C. am not D. not 4. Hurry _______! We’ll late for school. A. in B. of C. up D. down 5. You can see lions in the _______. A. park B. post office C. police station D. zoo 6. How do you feel? – I’m very _______. A. short B. pretty C. tall D. hungry 7. Choose odd one out. A. bad B. green C. yellow D. purple 8. How often does her husband watch TV? - _______ A. Two a week B. Twice a day C. For two days D. On Sunday 9. _______ she _______ in the garden every afternoon? A. Is/ skipping B. Is/ skips C. Does / skip D. Do / skip 10. Choose odd one out. A. earache B. backache C. sore throat D. stomach II. Match the parts in column A with the suitable parts in B. A B 1. Where is Kim Lien pagoda? 2. Would you like to know more about Tay Nguyen culture? 3. Where was Melisa yesterday? 4. What does she think of Military Museum? 5 Which place would you like to visit, West Lake or Tran Vu Temple? a. It’s in Quang An, Tay Ho district. b. It’s more attractive than she expected. c. I’d like to visit West Lake. d. Yes, of course. e. She was in Thanh Hoa. III. Reading a. Read and complete the passage with the given words: more crowded culture statues coach pagoda My name is Julia. I am a pupil in Class 5A, Rose primary school. Last weekend, I and my classmates visited Kim Lien (1) _______ in Tay Ho district. We went there by (2) _______. Kim Lien pagoda is (3) _______ than we expected. It is really beautiful with a small lake in the yard of the pagoda. There are a lot of (4) _______ of the holy gods and blooming flowers in the garden. My teacher taught us many new things about the (5) _______ of Vietnamese in our visit. I love Kim Lien pagoda very much. b. Read the passage again, decide if the following sentences are true (T) and false (F) 1. Julia and her classmate went to Kim Lien temple last weekend _______ 2. Kim Lien pagoda is crowded and beautiful _______ 3. Kim Lien pagoda has a large lake and a lot of statues _______ 4. In this visit, Julia learnt many new things about the history of Vietnam _______ 5. Julia loves Kim Lien pagoda _______ c. Read the passage again and complete the sentences 1. Julia and her classmates went to Kim Lien Pagoda by _______. 2. Kim Lien pagoda is _______ than they _______. 3. There is _______ in the yard of the pagoda. 4. The statues of _______ are in the garden. 5. Julia learnt about _______ of Vietnamese in her visit. IV. Rearrange the words to make correct sentences: 1. is/ expected / more / the / Hoa Binh / peaceful / park / than / children. _____________________________________________________________________ 2. would / Moc Chau / My / to / plateau /. / classmates / like / visit. _____________________________________________________________________ 3. to / This / Ha Noi / first / circus /./ is/ visit / central. _____________________________________________________________________ 4. like / hometown / ? / Would / visit / to / you / my _____________________________________________________________________ 5. think / does / Cat Ba / brother / What / island? / your / of _____________________________________________________________________ 6. is / expected / more / The / she / attractive / museum / than. _____________________________________________________________________ 7. would / Targon / My / to / mountain /./ like / visit / family. _____________________________________________________________________ 8. to / This / Quan Thanh / first / my / temple /./ is visit _____________________________________________________________________ 9. like / somewhere? / Would / go / to / Rosy _____________________________________________________________________ 10. think / does / Sam Son / What / beach? / Peter / of

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